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  1. XC Engine/Carb/Drivetrain
    I purchased a 450 xc the other day and noticed a bog in lower rpm range. It has a full hmf exhaust and a jd jet kit already installed. The jet kit is running a 180 main with a 45 pilot and the blue needle. I do not know what clip it is running and just wanted a suggestion for what settings I...
  2. XC Dyno/Tuning
    Just got my quad off the dyno and I'm kinda bumed at the power it made. Ended up pulling 52.66HP and 35.58TQ. I have pretty much all the supporting mods. Its a thumper racing 570 with their trail port job and stock sized kibble white valves, 833 cam, 43mm Carb. FCI intake. Hi-flow water pump...
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